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楸树属紫葳科,梓树属。原产我国,分布较广,遍及暖温带及亚热带。栽培历史久,至今已有2600多年。楸树为落叶乔木,可营造用材林、楸农间作林、防护林及庭院观赏、城乡绿化等,是综合利用价值很高的优质用材树种。其树干直、节少、材性好;木材纹理通直、花纹美观、质地坚韧致密、坚固耐用、绝缘性能好、耐水湿、耐腐、不易虫蛀;加工容易、切面光滑、着钉力中等、油漆和胶粘力佳。为建筑、家具、造船、桥梁、雕刻、乐器等优质用材。楸树树姿雄伟,干直荫浓,花紫白相间,艳丽夺目。在叶、花、枝、果、树皮、冠形方面独具风姿,具有较高的观赏价值和绿化效果。对二氧化硫、氯气等有毒气体有较强的抗性,能净化空气。是绿化城市、改善环境的优良树种。
Catalpa tree is asparagus, Catalpa genus. Originated in China, widely distributed throughout the warm temperate and subtropical. A long history of cultivation, has been 2600 years. Catalpa tree is deciduous tree, timber can create timber, Catalpa bungei for forest, shelterbelts and courtyard ornamental, urban and rural greening, is the comprehensive utilization of high value timber species. The trunk is straight, the section is less, the material is good; the wood grain is straight, the pattern is beautiful, the texture is tough and compact, the sturdy and durable, the insulation performance is good, the water is wet and decay resistant, is not easy to moth-eaten; Good paint and adhesive. For construction, furniture, shipbuilding, bridges, sculpture, musical instruments and other high-quality timber. Catalpa tree majestic tree posture, dry and thick shade, flowers purple and white, beautiful eye-catching. In leaves, flowers, branches, fruit, bark, crown-shaped unique style, with high ornamental value and greening effect. On the sulfur dioxide, chlorine and other toxic gases have strong resistance, can purify the air. It is an excellent tree species that green the city and improve the environment.